a:8:{i:0;s:2:"id";i:1;s:7:"item_id";i:2;s:7:"api_key";i:3;s:9:"api_token";i:4;s:7:"addtime";i:5;s:15:"last_check_time";s:3:"_pk";s:2:"id";s:5:"_type";a:6:{s:2:"id";s:7:"INTEGER";s:7:"item_id";s:7:"int(11)";s:7:"api_key";s:9:"CHAR(200)";s:9:"api_token";s:9:"CHAR(200)";s:7:"addtime";s:7:"int(11)";s:15:"last_check_time";s:7:"int(11)";}}